This thought-provoking article was written by Tom Barnes, Children's Music Workshop (L.A.) February 17, 2015:

If your parents ever submitted you to regular music lessons as a kid, you probably got in a fight with them once or twice about it. Maybe you didn’t want to go; maybe you didn’t like practicing. But we have some bad news: They were right. It turns out that all those endless major scale exercises and repetitions of “Chopsticks” had some incredible effects on our minds.